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Use of satellite data (presentation, 2001)

June 2002

Presentation of Elisabeth Gérard during the ALATNET training course on Data Assimilation in Gourdon, 11-22 June 2001.

Contents :

  • 1. Influence of satellite data in NWP
    • TEMP, SATOB, SSM/I, ATOVS
    • ARPEGE grid
    • Illustration of the OSEs
    • Short range in Northern Hemisphere
    • Medium range
  • Principle of remote sensing
    • Active remote sensing
    • Satellite picture
    • Radio occultation geometry
    • Passive remote sensing
    • Solar Backscatter Ultraviolet Spectral Radiometer
  • Information content
    • Radiative transfer equation
    • Information content
  • Problems due to complex H
    • Bias correction & contamination
    • Use of preprocessed ATOVS data at Météo-France
  • Compression of the data with future instruments
    • DRM method
    • SVD method
    • Iterative method
    • Jacobian method
    • Illustration for IASI
    • IASI on Metop
    • Remote sounding from IASI
    • Midlatitudes - T
    • Accuracy / No. of channels
    • Vert. resolution / No. of channels
    • Channel selection - Midlatitudes
    • Statistics on 518 SODA profiles

titre documents joints

Use of satellite data

8 November 2005
info document : GZ
1.3 Mb

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